1. strain,(动植物的)种,品种。 eg:This strain of wheat can grow during a cold winter. 这种品系的小麦能在寒冷的春天生长。 2. hopefully是个副词,表示怀着希望地;hopefully也有但愿的意思,表示这意思时多

发表于:2018-12-18 / 阅读(27) / 评论(0) 分类 儿童英文广播剧在线听

SYDNEY: All molecules are not created equal. Some have saved billions of lives, wreaked environmental havoc or made the world a more colorful place. Here's our selection of those that have changed the course of human history。 发自悉尼:分子并

发表于:2019-01-08 / 阅读(37) / 评论(0) 分类 实用英语

Love the way I feel Just treat you ways with fields why awaking here you should Run away from golds left you in the cold Nothing's in our way tonight You know that you'll never be replaced And everyone here make the same mistakes as me And either way

发表于:2019-01-14 / 阅读(45) / 评论(0) 分类 节奏布鲁斯

Once theyve caught the light of a dying star with their state of our telescopes. The detective work can begin. We collect that light and we analyze it in great detail in order to determine whats going on, whats the chemical makeup of the star, whats

发表于:2019-01-22 / 阅读(41) / 评论(0) 分类 自然百科2011年

And with his colleagues, he did the calculations to prove it. The key was the conditions created in the final stages about massive stars fighting against its gravity. These stars are so massive and hot that they can go through a whole series of nucle

发表于:2019-01-23 / 阅读(58) / 评论(0) 分类 探索与发现2015年

Yes, I remember I have, and found the air up there as warm as mustard; 是的,我记得曾经遇见这样的事,我发现天花板上端空气非常热, and when I got down, and bent my head near the floor to pick up something, I found it as co

发表于:2019-02-13 / 阅读(90) / 评论(0) 分类 美国语文第五册